Hazrat Adam bin Ali (may Allah be pleased with him) narrates that I heard the muezzin of the Messenger, Bilal's brother, saying that people are of three types. One is safe, the second is successful, and the third is destroyed. Then he said that the safe one is he who remained silent, and the successful one is he who enjoined good and forbade evil; thus, this person is in benefit from Allah. And the destroyed one is he who speaks ill and helps in oppression.